"FIXED" 5zig mod / Optifine / Vanilla Fullscreen Crash

I've tried everything. Updating my drivers (3 new updates since this error began getting thrown), downgrading Java to 8u51, updating Java to the latest version, clean installing Minecraft, Hell, I might even use the MCP Decompiler and try to solve the problem myself inside the Minecraft source code! If anybody could help me out, I would love you forever and would let you buy my kids.